San Jose’s Halloween starts clear but turns foggy and cloudy, with a 40% chance of late-night showers before a sunny Sunday.

Rain is on tap for Halloween in downtown Los Angeles, with the wettest conditions arriving Saturday night. Sunshine and warmer temperatures return Monday.

Light rain and cloudy skies will greet Chicago on Halloween, but showers should ease before evening plans. The bigger wet-weather threat arrives next week.

Phoenix gets a mostly cloudy Halloween before a much wetter and riskier night. Heavy rain and a Flood Watch will shape the rest of the weekend.

Philadelphia gets a sunny, crisp Halloween before temperatures surge into the 70s next week. Rain returns late Wednesday and Thursday.

Built atop a 1970s landfill, the Wyandotte County park will close for about 120 days during construction after methane readings exceeded the site's action level.

San Diego starts Halloween with isolated light showers continuing in the coastal basin, while additional rain is forecast late Saturday evening and into Sunday.

Denver’s Halloween starts with a Dense Fog Advisory, then warms into the low 60s before rain returns late Sunday and Monday.

Sacramento’s Halloween forecast calls for clouds, light winds and a high near 63. A late overnight rain chance gives way to mostly sunny skies Sunday.

Halloween starts mild in Las Vegas but could turn stormy after dark. Showers taper Sunday before sunny, drier weather returns Monday.

Fog is hanging over Seattle early Saturday, with clouds gradually clearing through the day. Sunday afternoon looks sunny and dry, while the next rain chances wait until midweek.

Miami’s Halloween weekend forecast is wet and windy, with thunderstorms, coastal flooding and dangerous rip currents through Monday.

Fog and frost greet Portland on Halloween, but the afternoon should stay mostly dry and mild. Rain chances return later next week.